This graphic shows the extent of Arctic sea ice in September 2009 (in white) compared with the median ice extent for September from 1979 to 2000 (in magenta). (U.S. National Snow and Ice Data Center/map)
This graphic shows the extent of Arctic sea ice in September 2009 (in white) compared with the median ice extent for September from 1979 to 2000 (in magenta). (U.S. National Snow and Ice Data Center/map)